Jacquard indicator for looms



4 Nov. 13,1928. 1 1,691,154

E. R. HOLMES I JACQUARD INDICATOR FOR LOOMS Filed Sept. 4, 1926Zfiheets-Sheet 2 (p fix INvEN-roFa x Q ELBFPIDGEJ:C{HOL ME5J v 4 ig ATTOR E75 Patented Nov..l3, 1928. v j

UNITED STATES PATENT OFFICE.

ELBRIDGE R. HOLMES, OF WORCESTER, MASSACHUSETTS, .faLSIfGNOR TO CROMPTON8:; KNOWLES LOOM WORKS, 013 WORCESTER, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

JAGQUARD INDICATOR non Looms.

Application filed September 4, 1926. 'serial No. 183,782.

This invention relates to improvements in rangement of parts hereinafterdescribed and jacquard indicators for looms and it is the set forth inthe claims. 1 principal object of the invention to provide In theaccompanying drawings wherein I improved means for preventing amisindicahave shown a convenient embodiment of my 5 tion from thejacquard should the loom be invention,

stopped when going either forward or bacl1- Fig. 1 is a side elevationof a loom having ward with the indication half given. my inventionapplied thereto, In my co-pending application Ser. No. Fig; 2 18 a viewsimilar to a portion of Fig.

116,750 there is shown a jacquard indicator 1 but on an enlarged scaleand showing the Similar to the one set forth herein but the leverindicating mechanism after having been which is connected directly tothe jacquard is moved to one of its extreme positionsby th provided witha series of teeth to cooperate jacquard. a i with spring plungers. Ifindin practice that Fig. 3 is an enlarged horizontal. section on theplungers, moving in a fixed line, do not lineB-S of Fig. 2,

15 afford the adjustment desirable in mecha- Fig. fis a fragmentary rearelevation on an nisms of this kind and furthermore the enlargedscaletaken in the direction of arrow plungers have to be made in such a wayas to Fig. 2, and i prevent rotation on their axes, otherwise when Fig.5 is a vertical section online 5-5 of the knife edges pass each otherthe plunger is F] 4:. likely to turn and interfere with the indica-Referring more particularly to Fig; 1 it tion. It is a further object ofmy invention will be seen that I have provided a loomside to provide thelever which is directly con- 10 having vibrator levers 11 pivotallyconnected to the jacquard with an indicating arm nected with respect tothe frame, each lever movable with respect to the lever andhavingcarrying a vibrator gear 12. Oppositely ro- 25 intersecting inclinedfaces which define a tating cylinders 13 and 1a are mounted on the knifeedge to cooperate with a second knife frame and act to rotate thevibrator gears 12 edge adjustable with respect to the lever to when thelatter are properly positioned. with afford means for moving the leverproperly respect to the cylinders by pattern mechanism irrespective ofany variations which may be not shown). Each vibrator lever has acon-30' due to workmanship. nector 15, attached to a bell crank lever 16 Theaforesaid application shows a. plurality pivoted on a fixed center 17and having con} of box controlling units each of which .innection withabox lifting lever 18. The lever so cludes a pair of hooks pivotallyconnected to 18 is connected to box rod 19 for the boxes 20. anoscillatable positioning lever. ".llhese The vibrator levers 11 willberaised orlowl. hooks are arranged to beengaged by a regucred accordingto which of the bones 209is'to larly moving knife which moves in a fixedbecome active. The matter thus far described path and as shown in saidapplication. no:pro-' is a well-known form of box ntiotion; I vision ismade to alter the relative positions The jacquard indicator mechanism ofthe hooks and knife edge. It is a further mounted on a frame 21 and haspivoted therein object of my invention to provide for changto anactuator lever 22 provided with a knife ing the position of the hooksrelatively to the or lifter 23 and is connected by means of rod actuatortherefor, preferably by making the 524i tofa cainlever 25. The latter isactuated by lugs which cooperate with the jacquard cona cam 26 securedto the crank shaft 27 ofthe trolled lever movable and adjustable as toloom so that for each pick of the loom the position. i knife or lifter28 will be raised and lowered.

With these and other objects in view which The, frameQl has a forwardlyextending will appear as the description proceeds, my arm 28 on which ispivoted as at 29 a series of invention resides in the combination and arthree-armed positioning levers 30,. The op thereto as at 55 a dependingarm 56 provided corresponding; lever 50 positely extending arms of eachlever are connected to upwardly extendmghooks 31 and the intermediatearm 32 is proportioned,

to be received by one or another of two cam notches 33 formed in avibrator controlling lever 34. There is one lever 34 for eaehof thethree-armed levers 30 each of said levers 34 being pivoted as at 35 tothe frameQl and beingconnected at the'other end thereof to a. vibratorlifter rod 36 the lower end of which is connected as at 3'? to one oranother of the" position as shown in 2 in full lines andbeing able tomove to its lower position when the levers 30 are moved to the dottedline position indicated in said figure.

The hooks 31 are proportioned to be operable one at a time withthe knifeedge or lifter 23 so that by selecting which of the hooks shall beraised it is possible to rock corre sponding levers 30 and therefore thevibrators 11 either to raise or'lower the latter and thus alter theposition of the active box.

Thematter described as being mounted on frame 21 and the associated1331118111213 be substantially the same as that shown in patent telly-onNo. 1,554,297. The .mechanism shown in said patent to Ryon is notdefinite enough in its action in that the controllers for the hooks maystop at an intermediate position so that the knife 23 moves upwardlyboth heel-ts will be indicated thereby, a condition which of course willproduce a break. lnan eifort to overcome this defect I provide a leverfor each pair of hooks 31, saidlover being pivoted on a stud 51 securedto the frame 21 and having projecting laterally from the lower endthereoftln'ee sJaced lugs 52 between which extend the upper ends of thehooks 31.

Each of'said levers 50 is connected by means of upper and lower cords 53and 54:, respec tively, to the'jacquard mechanism indicated at .T inFig. 11 said mechanism acting to pullon but one cord at a time so thatthe 3 ill be rocked either to the right or left.

Each lever 50 has pivotally connected.

with a knife edge 57 andthere is interposed between each arm 56 and itslever a compression spring'58 servingto push the knife edge 57 away fromthe lever 50. A laterally provjecting arm 59 on the frame 21. isprovided with a plurality of slots 60 as indicated in Fig. 4- and eachof said slots receives a stud 1 61 having a knife edge 62. Eachstud hasa reduced slabbed portion 63 to fit in theasso ciated slot 60 to preventrotation thereof and each stud isfurther provided with a screw 64 bymeans of which it may be held tightly in dotted lines the corres h n t l1 e l attcr position on the arm 59 and also zuljuslicd VH1? tically inthe slot 60..

In operation the jacquard mechanism will pull upon one or another of thecords 53 or so that the levers 50 will be rocked either to the right orto the l aboiiit the stud 51. lWhen lever 50 moves '1 the posit onindicated in full lines in l. 2 to that shown in ndino' arm 56 will imoved downwardly so that the knife edge 5'? Wlll slide over the upperinclined face of the lug 61 and pass knife edge {32 of the lugs. Thpressure of spring 58 will thereafter serve to continue the movement ofthe level-'50 even though the cord should not receive its full .mov nentdue to the stoppage of the loom. at an intermediate position or for anyother reason. Adjustment of the posinions of the lever 50 may beobtained by varv ing the vertical position. of the lug 61, the

ra'isingof the lrgs carrying the'armfilr upwardly and therefore causinga slight right hand movement. of the levers 50 so that the hoollsfil maybe positioned with respect'to the knife 23.

From the foregoing it will be seenthat I have provided simpleandreadymeans for I I i tion of-the levers 50 and alrin proper action betweenthe co e e .ges, the lugs 61be1ng free from the ob ection previouslynoted with reg ard to I the plnn'gers heretofore vusedand the wholearrangement occupying less space than that required in the structuresetforth in my copending application. i p

Having thus described my invention it will be apparent that changes andmodifications may be made therein by those skilled in the withoutdeparting from the spirit and scope of the invention, and. 1 do not wishto be limited to the details herein d isclosed but what I claim is:

1. In a jacquard indicator for the ho tion of a loom a member connectedto movable by the jacquard mechanism, a regularly mov'ng actuate a pairof elem operatively (tormented path of the actuator and a pair ofcooperating devices acting to complete a motion 01 the member initiatedby the jacquard ms i hanism, one of said devices being; connected to andmovable with the member. the other device being capable of lining; anyone of :1 mm.- lucr offixed posit ions relative] y tothe member is atrest; the variation of the position of said second device renderingpossible a variation .in l-llill lille'fti which said devices will beginto complete a motion of the member which is initiated by the acquardmechanism. I i

2. In a jacquard indicator for the box motion of a loom, a memberconnectedto and movable by thejacquard mechanism, a regularly movingactuator, a pair of elements op y I I to the box motion and n'iovahlowith the member relatively to the ion eratively connected tothe boxmotion and movable with the member relatively to the path of theactuator, and a pair of cooperating devices acting to complete a motionof the member initiated by the jacquard mechanism,

one of said devices being connected to and movable with the member, theother device being capable of assuming any one of a-number of fixedpositions relatively to themember when the latter is at rest, thevariation of the position of said second device rendering possible avariation in the time at which said devices will begin to complete amotion of the member which is initiated by the jacquard mechanism, oneof said devices being yieldable with respect to the other device.

In a jacquard indicator for the box motion of looms, a lever movable und1' control of the jacquard mechanism, a regularly mov ing actuator, apair of hooks operatively positioned with respect to the actuator by thelever, connections between the hooks and the box motion, a pair ofmembers each having a knife edge and co-acting to complete a movement ofthe lever which is initiated by the jacquard mechanism, one of saidmembers being operatively connected to the lever, and a support for theother member with respect to which said other member may assume any oneof a plurality of fixed positions, whereby the hooks may be positionedwith respect to the actuator by varying the position of said othermember.

4. In a jacquard indicator for the box motion of looms, a lever movableunder control of the jacquard mechanism, a regularly movin actuator aaair of hookso erativel aosi tioned with respect to theactuator by thelever, colmections between the hooks and the box mot-ion, an elementpivoted to the lever and having a knife edge, a second element having aknife edge to cooperate with the knife edge of the element to complete amotion of the lever initiated by the jacquard mechanism, and means tohold said second named element in any one of a plurality of fixedpositions with respect to the first named clement, whereby the positionof the lever and the hooks may be varied with respect to the actuator byvarying the position of the second. named element.

In. a acquard indicator for the box motion of looms, a lever movableunder influence of the jacquard mechanism, a pair of hooks positioned bythe lover, a regularly moving actuator, the lever moving the hooksintoand out of operative position with respect to the actuator,connections between the hooks and the box motion, and a pair of elementsto determine the position of the lever and complete a movement thereofinitiated by the jacquard mechanism, one of said elementsbeingoperatively connected to the lever, and one of said elements being'movable with re spect to the axis of the lever, whereby the varytheposition the actuator.

6. In a jacquard of the hooks relatively to indicator for the box motionof looms, a lever mov'ableunder influence of the acquard mechanism,apair of hooks positioned by the lever,a regularly moving actuator, thelever moving the hooks into and out of operative position with respectto the actuator, connections between the hooks and the box motion, apair of positioning elements for the lever one of which is relativelyfixed and the other of which moves with the lever, and means to vary thenormal position ofone of the elements with respect to the lever when thelatter is in normal position, whereby the position of the hooks may bevaried with respect to the actuator.

7. In a jacquard indicator for the box motion of looms, a lever movableunder control of the jacquard mechanism, an actuator having a regularmovement, a pair of hooks having connection with the lever and beingoperatively positioned thereby with respect to the actuator, connectionsbetween the hooks and the box mot-ion, a member pivotally mounted on thelever and having a knife edge, a second relatively fixed member alsohaving a knife edge defined by inclined surfaces, said knife edges ofthe members cooperatingto complete a motion of the lever initiate'dbythe jacquard mechanism.

8. In a jacquard indicator for the box motion of looms, a lever movableunder control of the acquard mechanism, an actuatorhaving a regularmovement, a pair of hooks having connection with the lever and beingoperatively positioned thereby with respect to the actuator, connectionsbetween the hooks and the box motion, a member pivotally mounted on thelever and having a knife edge, asecond relatively fixed member alsohaving a knife edn'e defined by inclined surfaces, said knife edges ofthe members cooperating to complctea motion of the lever initiated bythe jacquard mechanism, one of said members being yieldable.

9. Ina jacquard indicator for the box motion of looms, a lever movableunder control. of the jacquard mechanism, an actuator having a regularmovement, a pair of books. hav-' ing connection with the lever and beingoperatively positioned thereby with respect to the actuator,connect-ions between the hooks and the box motion, a member" pivotallymounted on the lever and having a knife edge, a second relatively fixedmember also having a knife edge defined by inclined surfaces, said knifeedges of the members cooperating to complete a motion of the leverinitiated by the jacquard mechanism, and means to hold the memberpivotally mounted on the lever yieldingly in engagement with the othermember.

10. In a jacquard indicator for the box motion of looms, a lever movableunder action I of the jacquard, a. regularly moving actuator,

a pair of hooks operatively connected to the lever and positionedthereby with respect to 5 the actuator, connections between the hooksand the box motion afixed 1115;, and an arm j pivote'dto the lever, saidlug and arm having oo-acting knife edges, the arm moving about ELBRIDGER. HOLMES.

